brown



H. M. BROWN. MACHINE FOR MAKING `BOTTLES, ETC.

APPLICATION FILED MAR. I8. I9I8- Patented Feb. 14, 1922.

l sus s- HE 4 l f @E 05 O :2 21

E@ Wgf H. M. BROWN.

MAcHlNE FOR MAKING BOTTLES, ETC.

APPLICATION FILED MAR. I8, 1918. l 14,

2 SHEETS-SHEET 2.

INVENTOR,

molmfis.

UNITED STATES PATENT OFFCE.

HARRY M. BROWN, OF BROOKLYN, NEW YORK, ASSIGNOR TO SPRING STOPPERCOMPANY, OF BROOKLYN, NEW' YORK, A CORPORATION OF DELAWARE.

MACHINE FOR MAKING BOTTLES, ETC.

Application filed March 18, 1918.

To all whom t may concern y Be it known that I, Hanny M. BnowN, acitizen ot the Unit-ed States, residing at Brooklyn, in the county oitKings and State ot' New York, have invented a new and usetui Improvementin a Machine tor Making Bottles, etc., ot which the following is aspeeication.

This invention relates particularly to machines tor making bottles, orsimilar containers, vwhich are provided within the mouthportion with aninternal screw thread; and the primary object ot the invention is toprovide an improved machine for making bottles, or the like, which,while having large capacity, is capable of providing the mouth ot thebottle with an internal thread simultaneously with the formation ot theneclcportion and mouth of the bottle.

The invention is illustrated, in its preterred embodiment, in theaccompanying` drawings, in which- Fig. l represents a broken plan viewot a bottle-making machine constructed in accordance with the invention;Fig. 2, a broken elevational view, partly in section, ot the same; Fig.3, an enlarged broken elevational view, partly in section, takenapproximately as indicated at line 3 ot F ig. l; Fig. il., brokensectional view taken as indicated at line 4 of Fig. l; and Fig. 5, abroken tional view showing the mouth-portion ot a bottle formed 'by theimproved machine, itted with an externally-threaded glass stopper.

It may be stated, generally, with reference to the machine illustrated,that it comprises an intermittently-actuated rotatable table havingmounted thereon a ci rcumterenti allyarranged series of' molds; meansfor automatically closing the molds and for automatically opening themagain aiter the torming and blowing operations have been performed; anda mandrel corresponding with each mold having threaded connection withthe table which carries it, and provided with an extremity whichco-operates with the mold and' has a thread corresponding in pitch withthe threaded connection between the mandrel and the table which carriesit; means for forcing the glass into the mold at the glass-chargingstation; means `for torcing air into the mold at the blowing station;and local mechanisms for turning the mandrels, seriatim, to elevate themto the mold- Spectcation of Letters Patent.

Patented Feb. 14:, 1922.

Serial No. 223,090.

ing position at the molding station, and 'lor turning the mandrels inthe opposite direction to withdraw them at the blowins.y sta-- tion. A

intermittently-actuated rotatable tables equipped with molds and meansfor opening and closing the molds are well-known in the art otbottle-making machines; hence` it is unnecessary to show and describethe/same with. great detail. The accompanying drawings will suiiice toenable the presenty invention to be iully understood by those skilled inthe art. l

In the construction illustrated` A represents a base which supports acentral column, or standard, A', B, an intermittently-actu# ated rotarytable mounted on the column A m the usual manner and caused to rotate,in a step-by-step manner, in the usual way, by any well-known mechanism(not shown.) C, C, a oircularlyarranged series ot molds mounted on thetable B; C, a mold baseplate associated with each mold and which isrigidly secured to the table near its circumferential edge, theswitching sections ot the mold being pivotally connected together andmounted on said base-plate, and also having interlocking connection withthe base-plate when the mold-sections are closed D, a man drelassociated with each mold and carried by the intermittently-actuatedrotary table, each mandrel being equipped with an actuating gear D D2, amounting for each mandrel irmly secured to the rotary table; E, localmechanism located at the glass-charging` station. and adapted to engagethe gears D@ seriatim, when they reach the glass-charging station,whereby each mandrel is, in turn, elevated to the molding position; F,local mechanism located at the blowing station and adapted to engageeach gear D', seriatim, when it reaches the blowing station, whereby themandrels are, in turn, lowered, thus enabling air-pressure to beadmitted through the bottleneck; and Gr, a motor serving to communicatemotion, through shafts G and G2, to the gear mechanisms E and F", insuch a manner that they will rotate in opposite directions.

The construction ot the trame, which comprises the base A and column A',need not be described in detail, as the same is well understood. It maybe stated, however, that the column A has ya reduced portion A2 whichextends through the rotary table B fio EIR

and carries a stationary cam A3 which serves to close thesectionally-constructed molds. rlhere is, also, a stationary cam [3:1,shown brolrenly in Fig. 1, which serves to open the molds after theblowing operation is performed. These cams serve, in a well-knownmanner, to actuate the radially-movinoslides C2, which are oined, byconnections C, to the mold-sections, whereby the mold-sec tions will loeautomatically 'closed before theyV reach the glass-charging station, andwill be automatically opened after they pass the glass-blowing station.V

Each mold C comprises, in addition `to the base-plate C', a pair otvertical sections 1 and 2 having pivot-lugs connected with a Verticalpivot 3 mounted on the bach-portion of' the base-plate C. Thesemold-sections are equipped with lateral ctuating arms 4l which arejoined by tie connections C3 to the radiallyemovable slides C2, in awelllnown manner. The lower ends of the mold-sections 1 and 2 areadapted to swing over 'the mold-plate C; and the mold-plate is providedwith a raised central portion .equipped with an annular llange o whichyis received in semi-annular recesses with which the base-portions o the.mold-sections 1 and 2 are provided.

The mold-sections 1 and2 are provider- Vjust above the raised centralportion of the moldeplate o with complemental annular recesses G, whichafford a chamber adapted to accommodate the separable sections l oi apair of tongs, the sections 'l having an internal contourcorrespondinp,` with the ei;- ternal contour of the bottle-mouth. lnFigs. 3 and Ll, 8 represents the bottle in the process oi formation. Thesections 7 which comprise the head ot' the tongs are carried by arms, orhandles, 7, which may extend through the recesses, or openings, l, withwhich the mold-sections 1 aint?J are provided, as shown in Fig. 2. 'lhetongs vare introduced before the inoldsections l. and 2 are closed, themold-plates C seine' ecuiipned with blocks, or supports, 9, whichprovided in their upper surfaces with recesses 1() adapted to receivethe handles ol the tongs, in the usual marmer. Each moldplate C furtherprovided with a radial perforation 11, which leads to a central formingoperation, and serre afterv-Jards as a means for removing,` the bottlefrom. the mold.

Each mandrel D comprises a spindle which has its upper end provided witha screw thread 19 and which ens its lower liana end Yprovided with athread 1.2a ot the same pitch.' The gear D, in the illustration given,is iiredly secured to the spindle. The mounting` D2 for the spindle, ormandrel, comprises a plate 13 which is firmly secured to the table B,depending posts 13a :firmly secured to the plate 13, and a crossbar 13"lixedly secured to the lower end of the posts 13a. The plate 13 has onits upper surface central boss 13C, Vwhich tits snugly into an opening'with which the table B is ijnfoyided near its circumference, and extendsinto corresponding central opening of the mold-plate C', whichconstitutes a downward extension of the chamber 11a, and thus the plate18 is properly centered with relation 'to the mold-plate. The mandrel l)ournaled to turn in the bearing atlorded by the central portion ot theplate 13. In eacl'i case, the lower end oi the mandrel. l) has threaded,connection with the'cross-bar 13"', that is, the thread 12L of eachmandrel works in a corresponding` thread 12b (Fig-2) with which thecentral portion oit the crossbar 153 is provided. Each gear D isequipped on its lower side with a pin, orstud, 1l, which depeinls tromit and is adapted to engage a stud 14 carried by the cross-bar 13b;whereby the rotation oit the mandrel will be arrested when theV mandrelis sufd ciently withdrawn from the mold; and each rfear D is 'furtherequipped on its upper side with a stud 15, which engages a stud 15ydependingv t'rom the plate 13, whereby the right-hand rotation of themandrel will he arrested aiter the mandrel Vreaches the moldingposition. ln each case, the gear D located between the plate 13 andthecrossbar 13b carried by the depending studs 13a. ln effect, the mandrel,in each case, has screwinections with the revoluble mold-carryii tableB. 'lhe plate 13 is secured to the talile by means of bolts 16, whichserve also to iirinly secure the mold plate C to the table. Y

'lhe nieclmnisin E, in the preferred construe on, oomprises a constantlyrotatiiz.; spindle 17' a gear 17 journaled thereon; and afriction-clutch device 1lb adapted to peri'nit slimiapge ot the spindle17 with re lation to the A@gear 17 when the stud, or stop, 15 engagesthe correspondingstop, 15a, after U l the mandrel has been elevated tothe moldin position. The `gear 17a, Viewed from below, rotatescounter-clockwise, so that each 1r l, when brought into engagementtherewith, willV be rotated clockwise to cause the mandrel to beelevated.

The gear mechanism F comprises a constantly rotatingn vertical shaft 18;a gear 18 journaled on the upper end thereof; and :i trictioirclutchdevice 18" adapted to perinit slippage alter the mandrel has beenwithdrawn 'from the molding' position. The

135% wise, so that each gear D when it arrives the blowing` station,will be rotated viewed from below, rotates clock- Y roorountercloekwise, thus lowering the mandrel to the inoperative position.T he friction-clutch device 18b comprises a frictiondisk 19 encirclingthe upper portion of the shaft 18 and received in a recess in the uppersurface of the gear 18, a sui-mounting metal disk, or collar, 19,splined on the upper end of the shaft 18, a leaf-spring, or resilientyoke, 19h, provided with a central perforation and havingits extremitiesbear ino; on the disk 192; and an adjusting screw 19c connecting thecentral portion of the spring` with the upper end of the shaft 18. Bythis means proper tension may be placed upon the parts to cause the gear18"L to perform its function of rotating` the mandrel. The frictiondevice 17h of the gear mechanism is of similar construction. Each of theshafts 17 and 18 is equipped with a collar 20, upon which thefriction-actuated gear is supported.

The shafts 1.7 and 18 are journaled in sta tionary brackets 21, whichmay be suitably supported on the frame of the machine. In theillustration 2ejiven, the shafts 1.7 and 18 are equipped at their lowerends with bevel pinions which mesh with pinions on the connectinghorizontal shaft G2. The motor shaft G is equipped with a bevel pinionwhich meshes with the bevel pinion on the lower end of the shaft 1'?. Bythis arrangement, the friction-actuated gear 17a rotates in onedirection, and the friction-actuated `gear 18n operates in the oppositedi rection. Thus, each of the mandrels D will be rotated clockwise andelevated when its rgear D reaches the glass-charging station,

and will be rotated counter-clockwise and withdrawn when the gear Dreaches the blowing station.

The machine is equipped, in the usual manner, with a blow-head H (Fig.2), which may be brought down onto the upper eno of a mold after thecharge of glass has been introduced into the mold. Thus, hy admittingvair pressure the glass, in its molten or plastic state, will. be forcedinto the bottom of the mold and will have its neck and head shaped andthe internal Screw-thread formed, this operation being' performed at theglasshargingj station while the table B remains stationary.

The machine is further equipped with a `moldcap l (Fig. 2), located atthe blowing station. This cap is adapted to be lowered on to the upperends of the mold-sections 1 and 2, and suitably socketed, as indicatedby dotted lines at 22, to lock the mold-sections in closed position.`The mold-cap l, also. is suitably formed to give the exterior finish ltothe bottom. of the bottle. 7hile the mold-cap I is forcibly held uponthe top of the sections 1 and 2 of the mold, the blowing operation .isperformed, it being understood that the mandrel D is at this timeretracted, as shown in Fig. P. At this station, the air-conduit 11 ofthe moldplate (l comes into registration with a blow-head J (Fig. l),.vhifh is held by the usual means (not shown) against the projectingportion of the mold-plate, while the table B is at The air passesthrough the chamber 11a into the mouth-portion of the bottle, and forcesthe glass to coni'orm to the interior configuration of the mold, as willbe understood from F lifter this operation, the mold is carried by thetable to the point where the bottle is to be removed, the cam A4 servingto automatically open the mold. The bottle may then be transferred to afinishing; machine provided with molds of larger internal contour, wherethe blowing;- operation is finished, in which operation the glass isreduced to the desired thickness. It is common in this class of machinesto construct a single machine with a finishing` table as well as amolding table. -This Yterms no part of the present invention, and is notillustrated.

From the description given, the oiLicration will be readily understood.4The revoluble table B is intermittently actuated, and the molds mountedon the table are so spaced that one mold wiil be located at thelglasscharging station while the mold in advance thereof will be locatedat the blowing;` station. The table carries the moles in an an nularpath, and with each mold carries a mandrel which has a threaded upperend and a correspondingly threaded shank having screw-connection withthe table, or a member carried by the table. The molds are closed, inturn, before they reach thev l.elasscharging station. vWhen a moldreaches this station, the `gear D of its mandrel comes into mesh withthe frictionallyactuated rotating `gear 11 which turns the mandredrightehandedly and elevates it, thus brin ging' the threaded upper endof the mandrel to the molding position. A charge of glass is introducedinto the mold, the blow-head H is lowered upon the mold, and the chargeof `glass in the mold is subjected to aiiepressure to force the ,Q -lassto ill the lower portion of he mold and mold the neck-portion of thebottle and give the interior finish to the bottle-mouth. Y rl`heblowhead H is then elevated, and the table is advaiucd another step,carrying the charged mold to the blowing station, at `which sta-- tionthe gear D of the mandrel comes into mesh with the rotating;`frictionally-actuated gear 18, which operates to turn the mandrelcounter-clockwise and lower it. The moldcap I is lowered upon the mold,and air is admitted into the mouth-portion of the bottle, thus forcingthe glass in the mold to conform to the internal configuration of themold. Thilo the molding operation is being performed at the chargingstation, the

blowing operation is being performed at the blowing station. rllhebottles carried from the blowing station to the point where they are tobe removed from the machine, the molds being automatically openedduring-'this time.

rEhe fri ctionally-actuated gears 17a and 18"* rotate rapidly, so thatthe work of raising the mandrel at one station and lowering it atanother requires but an instant.

lt will be noted that the mandrel is positively withdrawn by reason ofits screw-connection with the table which carries it; and the rate ofrotation and withdrawal correspond exactly with the screw thread in theglass, so that there is a perfect unscrewing action in the glasswithoutexerting` any pressure upon the glass, which at this stage still remainsin a` more or less plastic condition. There' can be no deformation ofthe thread in the glass, because the mandrel can neit-her drop of itsown weight nor lag behind so as to exert pressure upon the threads inthe glass, because of the fact that the mandrel is positively held inexactly the proper height at every degree during the unscrewingoperation by the metal screw-connections at l2EL and 12b. rlhe verysimple eX- pedient of the friction-clutch device employed enables themandrels to be screwed up and down expeditiously and without danger ofVinjury to the parts, inasmuch as slippage will occur after the desiredmovement of the mandrel is effected,

A machine ofthe character described is adapted to produce rapidly andeconomically bottles provided in the mouthdportion with an internalscrew thread, adapted to receive a threaded stopper, such as a glassstopper 8, equipped with a gasket 8b, as shown in Fig. 5.

lt will be understood that the table B is, in effect, a mold-carrier;and it is to be understood, also, that the mold-carrier may be given anysuitableform, and 'that the molds may be mounted on the carrier in anysuitable manner, various formsj of mold-carriers and various methods ofmounting the molds on such carriers being known in the art.

T he foregoing detailed description has been given for clearness ofunderstanding only, and no unnecessary limitation should be understoodtherefrom, but the appended claims should be construed as broadly aspermissible, in view of the prior art.

What l regard as new, and desire to secure by Letters Patent, is: Y

l. ln a machine of the character set forth, the combination with anintermittently-actuated table and a series of molds mounted 0n the upperside thereof, of a blow-head and having screw connection with the tableand having an upper extremity adapted to ji 'ect into the mold cavityand provided with a thread of the same pitch as said screw connection,local gear mechanism below the table at one station adapted to rot-ateeach mandrel in a direction to elevate the mandrel to the moldingposition preparatory to the ss-charging operation, and local gearmechanism located beneath the table at the other station and adapted torotate each mandrel in the opposite direction and lower the mandrel fromthe molding` position.

2. ln a machine of the character set forth, the combination with arevoluble table and a series of molds mounted thereon, of a mandrel foreach mold having screw connection with the table and provided with athreaded extremity adapted to extend into the mold cavity, and localmechanisms adapted to rotate said mandrels, seriatim, in one directionto project them into the molds and in' the other direction to effectwithdrawal, each ot said local mechanisms being equipped with africtioirclutch device to permit slippage. Y

ln a machine of the character setforth, the combination with arevolulole table and a series of molds mounted thereon, of a mandrel foreach mold having screw connection with the table and provided with athreaded extremity adapted to project into the mold, a gear element oneach mandrel, a gear element at a local station rotating in onedirection, a gear element at another local station rotating in theopposite direction, said gearelements being adapted to be engaged, inturn, by the gear-elements of the mandrels, one set of saidgear-elements being capable of slippage, for the purpose set forth.

fl. ln a machine of the character set forth, the combination with arevoluble table and a series of molds mounted thereon, of a mandrel foreach mold having screw connection with the table and having a threadedeX- tremity adapted to project into the mold, gearclemcnts mounted onthe mandrels, oppositely rotating gear-elements located at differentlocal stations and adapted to en-V gage, in. turn, the gear-elements ofthe mandrels as they arrive at said stations, one set of saidgear-elements being capable of slippage, and means for arresting therotation of each mandrel in each direction after the mandrel has risenor fallen the requisite distance.

5. ln a machine of the character set forth, the combination with anintermittently-actuated rotary table and a series of molds mountedthereon, of a mandrel for each mold having screw' connection with thetable and having threaded portion adapted to project into the mold, apair of oppositely-rotating vertical shafts Situated at different localstations, gear elements journaled on ico said shafts and adapted to beengaged, in turn, by the gear-elements of said mandrels, andfriction-clutch devices connecting said shafts with the gear-elementsmounted thereon.

6. In a machine of the character set forth, the combination with anintermittently-actuated rotary table series ot molds mounted thereon, ota mandrel for each mold having screw connection with the table andhaving a threaded portion adapted to project into the mold, a pair otoppositelyrotating vertical shafts situated at ditr'erent localstations, gear-elements journaled on said shafts and adapted to beengaged, in turn, by the gear-elements ot said mandrels, andfriction-clutch devices mounted on said shafts and equipped withadjusting devices, said clutch-devices being adapted to cause the'gear-elements on said shafts to rotate with the shafts and permitslippage after the mandrels have been moved the requisite distance.

7. ln a machine oi" the character set forth, the combination with anintermittently-actuated rotary table and a series ot mold mountedthereon, of a blow-head located at a glass-charging station above thepath of said molds, a mold-cap located above the path of said molds at ablowing station, a mandrel for each mold having screw connection withthe table and having a threaded extremity adapted to project into themold, gear-elements mounted on said mandrels, oppositely-rotatinggear-elements located, respectively, at the glass-charging station andthe blowing station and adapted to be engaged, in turn, by thegear-elements of said mandrels when they arrive at said stations, andmeans for permitting slippage of one set of gear-elements after themandrels have been moved the requisite distance.

8. In a machine of the character set forth, the combination with anintermittently-actuated rotary table and a series of molds mounted onthe upper side of said table, a mandrel for each mold journaled in thetable and having a threaded upper end adapted to project into the moldand equipped below the table with a gear-element, a threaded bearing forthe lower end ot each mandrel disposed below the table and tixedlyconnected with the table, and power actuated local gear mechanismsdisposed at ditferent stations below' the plane of the table and adaptedto be engaged, in turn, by the gear elements of said mandrels when theyarrive at said stations, whereby the mandrels will be elevated andlowered, seriatim, as they arrive successively at said stations.

9. In a machine et the character set forth, the combination with arevoluble table equipped on its upper side with a series ot' molds,mechanism for opening and closing said molds during the rotation ot thetable, a mandrel fior each mold extending through and having screwconnection with the table and having a threaded upper endportion adaptedto project into the mold, means located above the table at one stationtor admitting air-pressure to the upper iortion ot the molds as theyarrive in turn thereae, local ine'hanism disposed. below the table forro g each mandrel, in turn, in a given direction to elevate it to themolding position, a mold-cap located above the table at a blowingstation and adapted to be lowered on said molds, in turn, and. localmechanism di Liosed beiov: the table and adapted to rotate each mandrel,in turn, in the opposite direction to lower :it to the inoperativeposition to enable the blowing operation to be performed.

l0. ln a machine ot the character set forth, the combination of arevoluble table, a series of mold-plates monntedj thereon provided withcentral chambers, mold-sections mounted on said mold-plates, means tor,opening and closing said mold-sections during the rotation of the table,a series ot plates secured to the lower side oi the table, each platehaving a central projection extending tl rough an opening in the tableand into the central cavity ot the corresponding mold-plate, postsdepending from said last-named plates and equipped with cross-bars,mandrels iournaled in said last-named plates having threaded upperend-portions adapted to project tinto the molds and having threadedconnection at their lower end with said cross-bars, gearelements mountedon said mandrels, means for limiting the rotation oi said mandrels inboth directions, and local gear mechanisms having gear-elements rotatingin opposite directions which are adapted to engage the gear-elements ofsaid mandrels as they arrive in turn thereat.

ll, In a machine of the character set forth, the combination of' anintermittentlyactuated revoluble table, a series of sectional moldsmounted thereon, means for closing and opening said molds during therotation oi the table, a mandrel projecting through the table and havinga threaded upper endportion adapted to extend into the mold, agear-element mounted on each mandrel below the table, a member havingscrew connection with the lower end of each mandrel and linedconnections with the table, a pair` oit vertical shafts equipped withtrictionallyconnected gear-elements adapted to be engaged successivelyby the gear-elements ot said mandrels, and mechanism for continuouslyrotating said shafts in opposite directions.

12. The combination with a horizontal intermittently rotated tablecarrying a series ot spaced molds having bottom openings, ot

means mounted beneath said tahle tor torming an internal screw thread inthe neelr ot a hottie blank, which placed in a mold, Said meansconsisting of an attachment com* prising screw tap or plug havin@ astationary axis adaptedto simultaneously rotate and reciprocatelongitudinally whereby it will loe moved inte the loottom opening ot'the mold prior tothe delivery thereto ol t charge ot molten glass andnf'ithdrawn therefrom prior to blowing the blank.

13. The combination with a horizontal in termittentlj,7 rotated tablecarrying a Series et. .C1-paced molde having bottom openings, of meansmounted beneath ,said taille tor fornn ing an internal screw thread inthe neck ot a bottle iilanlf, which ie placed in a mold. said meansconsisting oi1 an attachment comprising rotatingly and reciproeatinglymounted spindle located beneath the table, having a stationary axis andhaving a screw tap or plug on one end thereof Con-- Structed andarranged whereby when tlre spindle rotated in one direetion it will hemoved endwise to place the screw tap or plug in the bottom opening oitthe mold and when rotated in the ooposite direction it Will move endwieeto Withdraw the screw tap or plug from the mold.

la. rllhe combination as defined in claim l2 in which the spindle issupported by a bracket carrying a Stationary nut, and a thread providedon theV Spindle and len'gaging said nut and forming the means fornioving wwhen said spindle is roanother local station rotating in theoppo-V site direction, said local gear-elements being adapted to heengaged, in turn, hy the gearelements ot the mandrels, one set oi'gearelemente' being-capable of slippage, menne for limiting the axialmovements of the mandrels.

1G. ln a machine of the character setitorth, the combination With arevoluhle' mold carrier and a series of molds mounted thereon, of amandrel for each mold having screw-Connection with the mold carrier andprovided with a threaded extremity adapted to project into the mold, agear-element on eaeh mandrel, and local driving mechanisms havingoppositely-rotating gear-elemente adapted to he engaged, in turn, by thegearelemente of t-hermandrele, the connections being adapted to permitslippage when the mandrels are held against rotation, and means forlimiting` the axial movements of the mandrels.

HARRY M. BROWN.

and

